Aquarium Testing Recommendations
The four most frequently asked water testing questions we receive are:
  • What should I test for?
  • How often should I test?
  • What is the desired value for a particular test?
  • Which test kit should I use?
The chart below lists all of the parameters we recommend testing for in the four main types of aquariums. It lists our recommended values for the tests and our recommended testing frequency. You can follow the links to find which test kit we recommend for each parameter in each tank.
At Least Weekly
At Least Every Other Week
At Least Monthly
Freshwater Fish
Planted
Saltwater Fish
Reef
Temperature 78-82
Temperature 76-78
Temperature 77-81
Temperature 77-81
Ammonia 0ppm
Nitrate 5-10ppm
Ammonia 0ppm
KH/Alkalinity 8.0-10.0 dKH
Nitrite 0ppm
pH 6.5-8.0
Nitrite 0ppm
Nitrate 5-10ppm
Nitrate <30ppm
KH 4.0-8.0 dKH
Nitrate <30ppm
Phosphate <.5ppm
pH 6.5-8.0
GH 4.0-8.0 dGH
Phosphate <1ppm
Calcium 400-450ppm



Ammonia 0ppm
KH/Alkalinity 8.0-10.0 dKH
Magnesium 1300-1350ppm



Nitrite 0ppm
pH 7.8-8.4
pH 7.8-8.4






Salinity 1.024-1.026 Specific Gravity
Ammonia 0ppm









Nitrite 0ppm









Salinity 1.024-1.026 Specific Gravity